Protocol system and related method of automatically updating a datum

A protocol system having a memory storing executable instructions capable of automatically updating a datum, the protocol system comprising:

• a plurality of signal receiving devices, each of the signal receiving devices comprising:
• an actuating unit for generating a reacting signal;
• and
• a first wireless transmission unit;
• and
• a signal outputting device, the signal outputting device comprising:
• a second wireless transmission unit;
• a detecting unit for outputting a detecting signal and receiving a plurality of reacting signals generated by the plurality of signal receiving devices according to the detecting signal;
• and
• a processing unit electrically connected to the second wireless transmission unit and the detecting unit, the processing unit receiving and analyzing the plurality of reacting signals to acquire distances between the signal outputting device and the corresponding signal receiving device when the detecting signal detects the plurality of signal receiving devices, the processing unit further selecting one of the signal receiving devices having the distance smaller than a threshold, outputting a request of datum transmission in accordance with the selected signal receiving device, and transmitting the datum to the selected signal receiving device via the second wireless transmission unit and the first wireless transmission unit when the request is allowed by the selected signal receiving device, so as to drive the selected signal receiving device to automatically execute an application program according to the updated datum;
• wherein the reacting signal represents the distance between the signal outputting device and a signal receiving device, the selected signal receiving device is configured to control at least one electric equipment, and the updated datum contains personalized environmental control parameter for rapidly adjusting the at least one electric equipment.